Microstructure and strength change of hardened cement paste under drying process

Ippei Maruyama; Yukiko Nishioka; Go Igarashi

Microstructure and strength change of hardened cement paste under drying process

Ippei Maruyama, Yukiko Nishioka, Go Igarashi

ENG - Architecture and Building Science

Research output: Contribution to journal › Conference article › peer-review

Abstract

Water vapor sorption isotherms, nitrogen sorption isotherms, and bending strength of cement paste cured with different relative humidity for 1 year are measured. Effect of drying on microstructure has two ways. One is nano-scale effect, in which nano-scale pore among globules is collapsed due to capillary tension or solution and re-precipitation cycle of C-S-H. The other one is atomic-scale effect, in which water adsorption sites are reduced due to drying by changing of other than Si network. From such effect, cement paste shows different nature of microstructure according to thermodynamic conditions, and resultantly, the physical properties are altered.

Original language	English
Article number	e358
Journal	Sustainable Construction Materials and Technologies
Volume	2013-August
Publication status	Published - 2013 Jan 1
Event	3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013 - Kyoto, Japan Duration: 2013 Aug 18 → 2013 Aug 21

Keywords

Bending strength
During process
Shrinkage
White cement paste

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanics of Materials
Materials Science(all)

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title = "Microstructure and strength change of hardened cement paste under drying process",

abstract = "Water vapor sorption isotherms, nitrogen sorption isotherms, and bending strength of cement paste cured with different relative humidity for 1 year are measured. Effect of drying on microstructure has two ways. One is nano-scale effect, in which nano-scale pore among globules is collapsed due to capillary tension or solution and re-precipitation cycle of C-S-H. The other one is atomic-scale effect, in which water adsorption sites are reduced due to drying by changing of other than Si network. From such effect, cement paste shows different nature of microstructure according to thermodynamic conditions, and resultantly, the physical properties are altered.",

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author = "Ippei Maruyama and Yukiko Nishioka and Go Igarashi",

year = "2013",

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day = "1",

language = "English",

volume = "2013-August",

journal = "Sustainable Construction Materials and Technologies",

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note = "3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013 ; Conference date: 18-08-2013 Through 21-08-2013",

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TY - JOUR

T1 - Microstructure and strength change of hardened cement paste under drying process

AU - Maruyama, Ippei

AU - Nishioka, Yukiko

AU - Igarashi, Go

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Water vapor sorption isotherms, nitrogen sorption isotherms, and bending strength of cement paste cured with different relative humidity for 1 year are measured. Effect of drying on microstructure has two ways. One is nano-scale effect, in which nano-scale pore among globules is collapsed due to capillary tension or solution and re-precipitation cycle of C-S-H. The other one is atomic-scale effect, in which water adsorption sites are reduced due to drying by changing of other than Si network. From such effect, cement paste shows different nature of microstructure according to thermodynamic conditions, and resultantly, the physical properties are altered.

AB - Water vapor sorption isotherms, nitrogen sorption isotherms, and bending strength of cement paste cured with different relative humidity for 1 year are measured. Effect of drying on microstructure has two ways. One is nano-scale effect, in which nano-scale pore among globules is collapsed due to capillary tension or solution and re-precipitation cycle of C-S-H. The other one is atomic-scale effect, in which water adsorption sites are reduced due to drying by changing of other than Si network. From such effect, cement paste shows different nature of microstructure according to thermodynamic conditions, and resultantly, the physical properties are altered.

KW - Bending strength

KW - During process

KW - Shrinkage

KW - White cement paste

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UR - http://www.scopus.com/inward/citedby.url?scp=85049726171&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85049726171

VL - 2013-August

JO - Sustainable Construction Materials and Technologies

JF - Sustainable Construction Materials and Technologies

SN - 2515-3048

M1 - e358

T2 - 3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013

Y2 - 18 August 2013 through 21 August 2013

ER -

Microstructure and strength change of hardened cement paste under drying process

Abstract

Keywords

ASJC Scopus subject areas

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